HBD-3 vs Thymopentin
Head-to-head comparison of HBD-3 (Human Beta-Defensin 3) and Thymopentin (L-Arginyl-L-Lysyl-L-Aspartyl-L-Valyl-L-Tyrosine) — benefits, dosing, side effects, research data, and where to buy.
Research Score
| Property | HBD-3 | Thymopentin |
|---|---|---|
| Category | Immune Support | Immune Support |
| Full Name | Human Beta-Defensin 3 | L-Arginyl-L-Lysyl-L-Aspartyl-L-Valyl-L-Tyrosine |
| Molecular Weight | 5158 Da | 676.78 Da |
| Half-Life | Minutes to hours; protease-sensitive | 10-30 min |
| Amino Acids | 45 | 5 |
| Typical Dose | Research use only; no approved human dose | 1 mg |
| Route | Topical / Intranasal / Research parenteral | Subcutaneous |
| Purity | ≥98% | ≥98% |
| Studies Count | 380 | 90 |
| Research Status | Pre-clinical | Clinical |
HBD-3 Benefits
- ✓strong antimicrobial activity
- ✓skin and mucosal defense
- ✓innate immune signaling modulation
- ✓wound-healing support
Thymopentin Benefits
- ✓t-cell maturation
- ✓helper-suppressor balance
- ✓immune recovery
- ✓antiviral-adjunct research
HBD-3 Dosing
0.1–10 µM in vitro|1–5 mg/kg in animal models|No established human dose
Thymopentin Dosing
1 mg SC or IM|2-3x weekly|4-8 week study cycles
HBD-3 Side Effects
- ⚠cell toxicity at high concentrations
- ⚠rapid proteolysis
- ⚠inflammatory activation in some contexts
Thymopentin Side Effects
- ⚠injection-site redness
- ⚠mild fever
- ⚠headache
Research Overview
HBD-3
Human beta-defensin 3 has been examined in numerous in vitro and animal studies for antimicrobial and immunomodulatory activity. Research suggests it can help defend barrier tissues while influencing cytokine networks, chemotaxis, and epithelial repair.
Thymopentin
Thymopentin has a long history of preclinical and clinical investigation as a thymic peptide immunomodulator. Published studies report effects on T-cell subsets, cytokine responses, and immune recovery in recurrent infection settings.
Ready to buy?
Find both peptides from our verified, lab-tested vendors with purity certificates and third-party testing.